Make batch changes work for large monorepos
Created by: eseliger
See RFC 574 WIP: Make Batch Changes work for common monorepo structures
This issue subsumes:
- https://github.com/sourcegraph/sourcegraph/issues/29861
- https://github.com/sourcegraph/sourcegraph/issues/29266
- https://github.com/sourcegraph/sourcegraph/issues/17609
- https://github.com/sourcegraph/customer/issues/393
Currently, we are writing a proposal: